Heel-plate.



E. HUNOLD.

HEEL PLATE. APPLICATION FILED FEB.18,1913.

1,079,050. Patented N0v. 18,19 13.

Fir, i ..Z

INK/INTER.

Entrust it oLn, or raov nnucn, nnonn rsna vn.

HEEL-PLATE.

Specification of Letters Patent.

Patented Nov. 1 8,1913,

Application filed February 18; 1913. Serial No. 749,186.

In the usual construction of heel plates that are stamped out of sheet or bar metal, the prongs when formed integral with the plate are flat and of the same uniform thickness as the sheet or bar. All of the prongs are usually formed on the edge of the plate and having no, additional strength other than that given by the thickness of the metal, they are usually weak and are liable to break or bend and when weak are at times driven improperly into the-leather, thereby failing to fasten the plate securely to the heel of the shoe.

The object of my invention is to improve the construction of a heel plate stamped out of sheet or knife shaped bar metal, whereby the main fastening prongs are stamped out of the central body portion of the plate lengthwise of the plate, thereby giving a greater length to these prongs and economizing in material, the prongs are greatly strengthened by forming the same concavoconvex in a transverse direction and by stamping the platesout of a bar that is knife shaped in cross section, the prongs have a maximum thickness at their base, where the greatest strength is required and a minimum thickness at the end or point, for easy penetration of the leather and the plate has its maximum thickness at the outer edge where the reatest wear comes on the plate.

M invention consists in the peculiar and novel construction of a heel plate stamped out preferably from a knife shaped metal bar, said heel plate having prongs stamped out lengthwise from the center of the plate and concavo-convex in cross section and the other details of construction, as will be more fully set forth hereinafter and claimed.

Figure 1. is a perspective view of a shoe, looking at the sole and showing the heel provided with my improved heel plate. Fig. 2 is a plan view of the heel plate looking at 5 its inner face. Fig. 3 is a vertical view of the heel plate looking at the outeror thick edge of the plate. Fig, 4. isa trauisverse sectional view through the heel plate taken on line 4.4. of Fig. 2. Fig. 5. is an enlarged transverse sectional view of" one of the prongs, taken on line 5..."). of Fig. 4. and showing the concavo-convex form of the prongs, and Fig. 6. is a face view of the knife shaped bar from which the heel plates are preferably constructed.

In the drawings 8 indicates a shoe having the usual sole 9 and heel 10, and 11 my improved heel plate. The heel plate 11 is blanked out preferably from knife shaped bar metal, as shown in Fig. .6, the die being so positioned that the outer edge of the plate is cut out of the maximum thickness of the bar, thereby cutting the ends of the prongs out of the thinner portion of the bar. The two oppositely disposed central prongs are cut out of the central portion of the plate, as shown in Figs. 2 and 6. When completed the heel plate 11. is constructed, to have the comparatively thick curved outer edge 12.

the thin or knife edge inner edge 13., the two long concavo-convexcentral prongs 14. 14. cut out of the central portion of the plate and bent at an angle toward each other and the two short concavo-convex end prongs 15.

15. bent at an angle toward each other, as shown in Figs. 2 and 3. The prongs 14. 14. and 15. 15. each have a thick base 16. and gradually decrease in thickness to a thin pointed end 17.

By cutting the long prongs out of the central portion of the plate a material saving in stock is obtained and the concavo-convex shape of the prongs adds greatly to their strength and holding power. By giving the greatest thickness to the prongs at their base where they join the plate, the prongs are greatly strengthened where required. By

gradually reducing the thickness of the I prongs toward the point they are easily driven into the heel and by inclining the ends of the prongs toward each other, theywill, when driven into the heel, clench and securely fasten the plate to the heel.

Having thus described my invention I claim as new A stamped curved heel plate having a thick outer edge talpering to a thin inner edge, two' long V siaped prongs centrally located and one short V shaped prong on each end of the plate, said V shaped prongs having a maximum thickness at the1r base and tapering to a minimum thickness at their eqds and concavo-cdnvex in cross .sec- In testimony whereof, I have signed my tion, sald long centralprongs being formed name to thls specification in the presence of v10 by integrally stamping the same out of the pwo subsc ribing witnesses.-

central body portion of the plate and inclined toward each other and the short end ERNEST HUNOLD, prongs being integrally'st-amped out on the Witnesses:

ends of the plate and'inolined toward each J OHN H. MCNULTY,

other. CHAs. H. LUTHER. 

